Palm, Inc. today said it has sold its two-millionth Centro smartphone, confirming the $99 product's growing momentum with traditional mobile phone users who want to move up to a phone that offers more functionality. Palm is now offering Centro in more than 25 countries in North America, South America, Europe and Asia Pacific.

"Consumers are ready to do more on their mobile phone, and Centro has struck a chord around the world," said Brodie Keast, senior vice president of marketing for Palm, Inc. "Centro has everything a person needs to stay connected with everyone who is important to them -- and at a price point and size that make smartphones more attractive to a much wider audience."

Palm also showed strong growth among smartphone manufacturers, ranking No. 2 in the United States in mobile advertising reach, and No. 3 worldwide. The AdMob report, which analyzes worldwide data to gauge mobile Internet use among devices able to receive mobile ads, also noted that 24.3 percent of worldwide ad requests in June were from smartphones, up from 22.4 percent in May. As more consumers leave their traditional mobile phones behind in favor of moving up to phones with greater functionality, mobile web usage is expected to increase.